Improve Everywhere is a group of people based in New York who stage events, or “missions” in public places. In this mission they stop moving and freeze for five minutes in a busy Grand Central Station.

Watch the video and check if you can understand:

“All right. Thanks for coming out, everybody. I’m really excited that all you guys are here. We’ve got a really exciting mission that we’re going to be doing today.”
“We’re going to be freezing in place on cue at the exact second. We’re going to hold that for five minutes and then we’re going to unfreeze and we’re out.”